Fat Free Mass Index Calculator
Here's a comprehensive table summarizing all you need to know about the Fat Free Mass Index (FFMI):
| Aspect | Details |
|---|---|
| Definition | FFMI is an abbreviation for Fat-Free Mass Index, which describes the amount of muscle mass in relation to height and weight1. |
| Purpose | It provides a more precise measure of body composition than BMI, especially for athletes and bodybuilders5. |
| Formula | FFMI [kg/m²] = Fat-free mass [kg] / (Height [m])²1 |
| Calculation Steps | 1. Calculate body fat: body fat = weight [kg] × (body fat [%] / 100) 2. Calculate fat-free mass: fat free mass = weight [kg] × (1 - (body fat [%] / 100)) 3. Calculate FFMI: FFMI = fat free mass [kg] / (height [m])²1 |
| Average Values | Men: 18-20 kg/m² Women: 14-17 kg/m²1 |
| Interpretation | <22-23: Excellent 23-26: Superior 26-27.9: Very high (possible steroid use) 28-30: Extremely high (likely steroid use)3 |
| Advantages | - Accounts for muscle mass - Better for athletes and bodybuilders - Indicator of overall health and athletic performance - Can indicate training level5 |
| Limitations | - Requires body fat percentage measurement - Less widely used than BMI - May not be accurate for all body types |
| Health Implications | Higher FFMI is associated with better metabolism, bone strength, and lower risk of obesity, insulin resistance, and diabetes3. |
| Variations | Normalized FFMI: Adjusted for taller athletes who are bigger overall1 |
This table provides a comprehensive overview of the Fat Free Mass Index, including its definition, calculation method, interpretation, advantages, and health implications. It's important to note that while FFMI is a useful tool, it should be used in conjunction with other health indicators for a complete assessment of an individual's physical condition.